<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>继承</title>
	<style type="text/css">
		body{
			color: red;
			font-size: 50px;
			width: 200px;
			height: 200px;
			background: blue url() 0 0 no-repeat;
		}
		p{
			width: 300px;
			height: 300px;
			font-size: 40px;
			background:#22B14C url() 0 0 no-repeat;
		}
	</style>
</head>
<body>
	<p>这个是一个P标签<span>里面的span</span></p>
</body>
</html>